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- May 3, 2011
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Using a steel is probably the worst you may do, especially with VG-10. It rebuilds an edge from steel that has failed — instead of abrading it. VG-10 is very likely to develop a wire edge: a burr on top of the apex, very sharp, but breaking off at the first use, and taking a bit of the real edge with it. A ruined edge is the result."In order to maximize the life of the blade, regular honing with a Shun steel will be necessary. Weekly honing will extend the time between sharpening significantly. When the time comes to sharpen these premium blades, we recommend using a whetstone, the Kai electric sharpener (specifically designed to sharpen Shun’s 16° blade angle), or sending the knives to a professional sharpener or to our Tualatin, Oregon center for free sharpening."
https://shun.kaiusaltd.com/product-care
As for Shun's sharpening service: never tried it. According to reports in another forum it is no stone sharpening you get, and a lot of steel is being wasted.